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Thread: Whats causing yellow marks?

  1. #1

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    Default Whats causing yellow marks?

    They are barneys farm red cherry berry grown in soil from seed. the are about 15-18 inches tall and five days into 12/12 flowering light. They are being grown under LED grow lights. Adverage temp is 22c and average humidity is 60%. The have a extract fan running constant pulling air through a vent for air flow. Today noticed yellow marks on one of the smaller/bushier plants leaves (see attached pic) the rest seem healthy, what could be causing this?. I have also attached a pic of the taller plants. Do they look healthy to you?
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  2. #2
    Master Poet Guest

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    have you lookked on the underside of the leaves? You want to be looking for any little critters scurrying about or webbing, could be spidermites or thrips maybe.

  3. #3

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    have seen no evidence of spider mites or webbing etc, it is only on two leaves on one plant out of the four we have next to each other

  4. #4
    Tiles Of The Simpsons Champion!
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    They look lovely and healthy enough to me. The longer you go into 12/12 the more the plant will put energy into producing the flowers, rather than maintaining the leaves.
    Before they finish a few leaves will go completely yellow and some will even drop off, as long as the plant stays looking healthy and the buds grow nice i wouldn't worry.
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